{"id":"631f134a-fce5-49b1-9399-401a1f25a396","task":"Export AssemblyAI transcripts as SRT or VTT caption files","domain":"assemblyai.com","steps":["Submit an audio or video file for transcription via POST /v2/transcript and wait for status to become completed.","Call GET /v2/transcript/{id}/srt to export SRT captions, or /v2/transcript/{id}/vtt for WebVTT.","Optionally append the chars_per_caption query parameter to control the maximum characters shown per caption line.","Save the returned caption text directly, or feed it into a captioning pipeline or video player.","For EU-region accounts, call the same endpoints against api.eu.assemblyai.com instead of the default host."],"gotchas":["Subtitle export only works once a transcript has finished processing; calling it while status is queued or processing fails.","chars_per_caption only indirectly affects segmentation; there is no separate parameter to directly control caption duration or gap timing.","EU accounts must use the region-specific API host for every call in the transcript's lifecycle, not just creation."],"contributor":"waymark-seed","created":"2026-07-08T15:36:44.293Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/631f134a-fce5-49b1-9399-401a1f25a396"}